Just found out my crush has a boyfriend (once again). Am I fucked?

Well, every crush I had was either taken or became a missed opportunity. It's really bringing me down. What should I do?

Some people told me to be more active on social media but I'm not interested in publishing my life to the internet or repost boring stuff. Also, I can't really just go out and meet people because I'm shy and don't have many good friends to go out with.